| MBWI Algorithm Specification | |
The MBWI operator algorithm computes the
Multi-Band Water Index
from a given product.
The MBWI results from the following equation:
MBWI = (omega * G) - R - N - S1 - S2
, where:
The bands are:
- G is the Green band
- R is the Red band
- N is the NIR band
- S1 is the SWIR 1 band
- S2 is the SWIR 2 band
and the coefficients are:
- g is the Gain factor coefficient
- omega is the Weighting coefficient used for MBWI
coefficient
Also the processor computes an additional flags band called 'mbwi_flags' with the following bit coding:
| Bit Position | Description |
|---|---|
| Bit 0 | The computed value for MBWI is NAN or is Infinite |
| Bit 1 | The computed value for MBWI is less than -1 (minus one) |
| Bit 2 | The computed value for MBWI is greater than 1 (one) |